/* fbMenu() (c) 2009 by Felix Buenemann - Felix.BuenemannATgmailCOM */
function fbMenu(parentElementId) {
	// attach event handlers
	var elgrp = $$('#'+parentElementId+' > ul > li > a');
	elgrp.each(function(el,idx){
		el.addEvent('mouseenter',function(){
			var pel = this.getParent();
			var ppelgrp = pel.getParent()/*.getChildren('> li')*/;
			ppelgrp.getElements('ul').each(function(el,idx){
				el.morph({top: 0, height: 0});
			});
			
			if(pel.getElement('ul')) {
				pel.getElement('ul').morph({top: -90, height: 90});
			}
		});
	});
	
	var el = $(parentElementId);
	el.addEvent('mouseleave',function(){
		var ppelgrp = this.getElement('ul')/*.getChildren('> li')*/;
		ppelgrp.getElements('ul').each(function(el,idx){
			el.morph({top: 0, height: 0});
		});
		
		var pel = this.getElement('li.active');
		if(pel && pel.getElement('ul')) {
			pel.getElement('ul').morph({top: -90, height: 90});
		}
	});
}

window.addEvent('domready', function(){
	fbMenu('mainmenu');
});